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a ball is rolled off a table with an initial horizontalbelocity of 1.8 m/s. If the table is 85 cm high and the ball landsin a box placed a distance x away from the edge of the table, how long does it take for the ball to land in the box?
An engine absorbs 1.72 kJ from a hot reservoir at 277°C and expels 1.15 kJ to a cold reservoir at 27°C in each cycle. How much work is done by the engine in each cycle
You have to move your 900N couch before a delivery company drops off your new one. How much does your roommate weigh
A woman with a package in her hand is riding in a hot air balloon which is climbing at a constant speed of 8.0 m/s. How long does it take for the package to hit the ground
Certain rifles can fire a bullet with a speed of 950 m/s just as it leaves the muzzle (this speed is called the muzzle velocity). What is the acceleration of the bullet within the rifle
A molecule of water vapor causes an electricfield in the surrounding space as if it were an electricdipole. Derive an expression for the electric field due to an electric dipole at a point P at a distance z from thecenter of the dipole
A mass m is connected to the bottom of a vertical spring whose force constant is k. Attached to the bottom of themass is a string that is connected to a second mass m, asshown in the figure . Both masses are undergoing simple harmonicvertical moti..
question1an artillery shell is fired with an initial velocity of 310 ms at 57.0deg above the horizontal. it explodes on
A certain heat engine does 10.2 kJ of work and 9.5 kJ of heat is transfered to the environment in a cyclical process. What was the heat transfer into this engine
A subway train has a sound intensity level of 90 dB, and a rock band has a sound intensity level of 110 dB. How many times greater is the sound intensity of the band than that of the train
What key considerations are involved in setting up a computer network for an integrated health care system and how do integrated systems affect the installation of networks.
A cannon ball is fired at a wall located 450 meters away. The initial horizontal component of the balls velocity is 90 m/s and it's initial angle is 24 degrees. How long does it take for the ball to reach the wall
The hydraulic lift in a service station is capable of raising cars with a mass up to 2000kg. calculate the diameter of the driving piston if the lifting is to be accomplished with a force not to exceed 100N
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